1. High frequency oral movements induced by long-term administration of amperozide but not FG5803 in rats

   • U. Liminga
   • P. E. Andrén
   • L. M. Gunne

   Original Investigation Pages: 223 - 230

2. Faster P300 latency after smoking in visual but not auditory oddball tasks

   • M. E. Houlihan
   • W. S. Pritchard
   • J. H. Robinson

   Original Investigation Pages: 231 - 238

3. Theα ₂ antagonist idazoxan remediates certain attentional and executive dysfunction in patients with dementia of frontal type

   • J. T. Coull
   • B. J. Sahakian
   • J. R. Hodges

   Original Investigation Pages: 239 - 249

4. Effects of purine analogues on spontaneous alternation in mice

   • N. Hooper
   • C. Fraser
   • T. W. Stone

   Original Investigation Pages: 250 - 257

5. Effects of haloperidol and SCH 23390 on acoustic startle in animals depleted of dopamine as neonates: implications for neuropsychiatric syndromes

   • S. B. Schwarzkopf
   • J. R. Ison
   • T. Mitra

   Original Investigation Pages: 258 - 266

6. 2,4-Dithiobiuret in rats: cognitive facilitation after acute injection precedes motor impairment after repeated daily injections

   • P. J. Bushnell
   • W. M. Oshiro

   Original Investigation Pages: 267 - 279

7. Neuropharmacological evidence for the role of dopamine in ventral pallidum self-stimulation

   • G. Panagis
   • C. Spyraki

   Original Investigation Pages: 280 - 288

8. Cross-tolerance of associative and nonassociative morphine tolerance in the rat with mu- and kappa-specific opioids

   • B. L. Carter
   • S. T. Tiffany

   Original Investigation Pages: 289 - 296

9. Effects of trepelennamine on brain monoamine turnover in morphine dependent and abstinent mice

   • O. San-Martín-Clark
   • B. Cuéllar
   • P. Lorenzo

   Original Investigation Pages: 297 - 302